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Simplifying 3x2 + 5x + -48 = 0 Reorder the terms: -48 + 5x + 3x2 = 0 Solving -48 + 5x + 3x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -16 + 1.666666667x + x2 = 0 Move the constant term to the right: Add '16' to each side of the equation. -16 + 1.666666667x + 16 + x2 = 0 + 16 Reorder the terms: -16 + 16 + 1.666666667x + x2 = 0 + 16 Combine like terms: -16 + 16 = 0 0 + 1.666666667x + x2 = 0 + 16 1.666666667x + x2 = 0 + 16 Combine like terms: 0 + 16 = 16 1.666666667x + x2 = 16 The x term is 1.666666667x. Take half its coefficient (0.8333333335). Square it (0.6944444447) and add it to both sides. Add '0.6944444447' to each side of the equation. 1.666666667x + 0.6944444447 + x2 = 16 + 0.6944444447 Reorder the terms: 0.6944444447 + 1.666666667x + x2 = 16 + 0.6944444447 Combine like terms: 16 + 0.6944444447 = 16.6944444447 0.6944444447 + 1.666666667x + x2 = 16.6944444447 Factor a perfect square on the left side: (x + 0.8333333335)(x + 0.8333333335) = 16.6944444447 Calculate the square root of the right side: 4.085883557 Break this problem into two subproblems by setting (x + 0.8333333335) equal to 4.085883557 and -4.085883557.Subproblem 1
x + 0.8333333335 = 4.085883557 Simplifying x + 0.8333333335 = 4.085883557 Reorder the terms: 0.8333333335 + x = 4.085883557 Solving 0.8333333335 + x = 4.085883557 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = 4.085883557 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = 4.085883557 + -0.8333333335 x = 4.085883557 + -0.8333333335 Combine like terms: 4.085883557 + -0.8333333335 = 3.2525502235 x = 3.2525502235 Simplifying x = 3.2525502235Subproblem 2
x + 0.8333333335 = -4.085883557 Simplifying x + 0.8333333335 = -4.085883557 Reorder the terms: 0.8333333335 + x = -4.085883557 Solving 0.8333333335 + x = -4.085883557 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = -4.085883557 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = -4.085883557 + -0.8333333335 x = -4.085883557 + -0.8333333335 Combine like terms: -4.085883557 + -0.8333333335 = -4.9192168905 x = -4.9192168905 Simplifying x = -4.9192168905Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.2525502235, -4.9192168905}
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